We present a new pre-trained language model (PLM) for modern Hebrew, termed AlephBERTGimmel, which employs a much larger vocabulary (128K items) than standard Hebrew PLMs before. We perform a contrastive analysis of this model against all previous Hebrew PLMs (mBERT, heBERT, AlephBERT) and assess the effects of larger vocabularies on task performance. Our experiments show that larger vocabularies lead to fewer splits, and that reducing splits is better for model performance, across different tasks. All in all this new model achieves new SOTA on all available Hebrew benchmarks, including Morphological Segmentation, POS Tagging, Full Morphological Analysis, NER, and Sentiment Analysis. Subsequently we advocate for PLMs that are larger not only in terms of number of layers or training data, but also in terms of their vocabulary. We release the new model publicly for unrestricted use.

大型预用屏蔽语言模型已成为许多NLP问题的最先进的解决方案。虽然研究表明，单晶模型产生比多语言模型产生更好的结果，但训练数据集必须足够大。我们培训了立陶宛，拉脱维亚语和英语的三种语言Litlat Bert样模型，以及爱沙尼亚的单语Est-Roberta模型。我们在四个下游任务中评估它们的性能：命名实体识别，依赖解析，词语标记和单词类比。为了分析对单一语言的重要性以及大型培训集的重要性，我们将创建的模型与爱沙尼亚，拉脱维亚和立陶宛人进行了现有的单语和多语言伯特模型。结果表明，新创建的Litlat Bert和Est-Roberta模型在大多数情况下改善了所有测试任务的现有模型的结果。

我们为拉比希伯来语提出了一种新的预训练的语言模型（PLM），称为Berel（Bert bert嵌入了拉比编码的语言）。尽管存在其他PLM用于处理希伯来文本（例如Hebert，Alephbert），但它们都接受了现代希伯来语文本的培训，该文本在其词典，形态学，义学和正学规范方面与犹太人希伯来语有很大的不同。我们通过一组希伯来语同源物来证明贝雷尔在拉比文本上的优越性。我们发布了无限制使用的新模型和同型挑战。

Given the impact of language models on the field of Natural Language Processing, a number of Spanish encoder-only masked language models (aka BERTs) have been trained and released. These models were developed either within large projects using very large private corpora or by means of smaller scale academic efforts leveraging freely available data. In this paper we present a comprehensive head-to-head comparison of language models for Spanish with the following results: (i) Previously ignored multilingual models from large companies fare better than monolingual models, substantially changing the evaluation landscape of language models in Spanish; (ii) Results across the monolingual models are not conclusive, with supposedly smaller and inferior models performing competitively. Based on these empirical results, we argue for the need of more research to understand the factors underlying them. In this sense, the effect of corpus size, quality and pre-training techniques need to be further investigated to be able to obtain Spanish monolingual models significantly better than the multilingual ones released by large private companies, specially in the face of rapid ongoing progress in the field. The recent activity in the development of language technology for Spanish is to be welcomed, but our results show that building language models remains an open, resource-heavy problem which requires to marry resources (monetary and/or computational) with the best research expertise and practice.

这项研究提供了对僧伽罗文本分类的预训练语言模型的性能的首次全面分析。我们测试了一组不同的Sinhala文本分类任务，我们的分析表明，在包括Sinhala（XLM-R，Labse和Laser）的预训练的多语言模型中，XLM-R是迄今为止Sinhala文本的最佳模型分类。我们还预先培训了两种基于罗伯塔的单语僧伽罗模型，它们远远优于僧伽罗的现有预训练的语言模型。我们表明，在微调时，这些预训练的语言模型为僧伽罗文本分类树立了非常强大的基线，并且在标记数据不足以进行微调的情况下非常强大。我们进一步提供了一组建议，用于使用预训练的模型进行Sinhala文本分类。我们还介绍了新的注释数据集，可用于僧伽罗文本分类的未来研究，并公开发布我们的预培训模型。

与标准命名实体识别（NER）相比，在历史文本中识别人，位置和组织是一个巨大的挑战。为了获得机器可读的语料库，通常需要扫描历史文本，并且需要执行光学特征识别（OCR）。结果，历史文献包含错误。此外，位置或组织等实体可以随着时间的推移而改变，这构成了另一个挑战。总体而言，历史文本带有几种特殊性，这些特殊性与现代文本有很大不同，并且在该领域几乎无法使用训练神经标记器的大型标记的Corpora。在这项工作中，我们通过培训大型历史语言模型来解决历史，英语，法语，瑞典语和芬兰语的历史文献。我们通过使用未标记的数据预处理语言模型来规避大量标记数据的需求。我们提出了Hmbert，这是一种历史多语言基于BERT的语言模型，并以多种不同大小的版本发布该模型。此外，我们通过解决下游NER作为今年HIPE-2022共享任务的一部分来评估HMBERT的能力，并提供详细的分析和见解。对于多种语言的经典评论粗粒ner挑战，我们的标记者Histeria的表现优于其他团队的三种语言中的其他团队的模型。

在本文中，我们介绍了TweetNLP，这是社交媒体中自然语言处理（NLP）的集成平台。TweetNLP支持一套多样化的NLP任务，包括诸如情感分析和命名实体识别的通用重点领域，以及社交媒体特定的任务，例如表情符号预测和进攻性语言识别。特定于任务的系统由专门用于社交媒体文本的合理大小的基于变压器的语言模型（尤其是Twitter）提供动力，无需专用硬件或云服务即可运行。TweetNLP的主要贡献是：（1）使用适合社会领域的各种特定于任务的模型，用于支持社交媒体分析的现代工具包的集成python库；（2）使用我们的模型进行无编码实验的交互式在线演示；（3）涵盖各种典型社交媒体应用的教程。

编码单词语义属性的密集词向量或“Word Embeddings”现在已成为机器翻译（MT），问题应答（QA），字感消解（WSD）和信息检索（IR）中的NLP任务的积分。在本文中，我们使用各种现有方法为14个印度语言创建多个单词嵌入。我们将这些嵌入的嵌入式为所有这些语言，萨姆萨姆，孟加拉，古吉拉蒂，印地教派，kannada，konkani，malayalam，marathi，尼泊尔，odiya，punjabi，梵语，泰米尔和泰雅古士在一个单一的存储库中。相对较新的方法，强调迎合上下文（BERT，ELMO等），表明了显着的改进，但需要大量资源来产生可用模型。我们释放使用上下文和非上下文方法生成的预训练嵌入。我们还使用Muse和XLM来培训所有上述语言的交叉语言嵌入。为了展示我们嵌入的效果，我们为所有这些语言评估了我们对XPOS，UPOS和NER任务的嵌入模型。我们使用8种不同的方法释放了436个型号。我们希望他们对资源受限的印度语言NLP有用。本文的标题是指最初在1924年出版的福斯特的着名小说“一段是印度”。

由于BERT出现，变压器语言模型和转移学习已成为自然语言理解任务的最先进。最近，一些作品适用于特定领域的预训练，专制模型，例如科学论文，医疗文件等。在这项工作中，我们呈现RoberTuito，用于西班牙语中的用户生成内容的预先训练的语言模型。我们在西班牙语中培训了罗伯特托5亿推文。关于涉及用户生成文本的4个任务的基准测试显示，罗伯特托多于西班牙语的其他预先接受的语言模型。为了帮助进一步研究，我们将罗伯特多公开可在HuggingFace Model Hub上提供。

经过审计的多语言模型已成为将NLP功能转移到低资源语言的常见工具，通常具有适应性。在这项工作中，我们研究了两种改编的性能，可扩展性和相互作用：词汇增强和脚本音译。我们对九种多样化的低资源语言中的词性标签，普遍依赖解析的评估，并命名为实体识别，以维护这些方法的可行性，同时围绕如何最佳地将多语言模型适应低资源设置的新问题。

In this paper, we show that Multilingual BERT (M-BERT), released by Devlin et al. (2019) as a single language model pre-trained from monolingual corpora in 104 languages, is surprisingly good at zero-shot cross-lingual model transfer, in which task-specific annotations in one language are used to fine-tune the model for evaluation in another language. To understand why, we present a large number of probing experiments, showing that transfer is possible even to languages in different scripts, that transfer works best between typologically similar languages, that monolingual corpora can train models for code-switching, and that the model can find translation pairs. From these results, we can conclude that M-BERT does create multilingual representations, but that these representations exhibit systematic deficiencies affecting certain language pairs.

文本分类是具有各种有趣应用程序的典型自然语言处理或计算语言学任务。随着社交媒体平台上的用户数量的增加，数据加速促进了有关社交媒体文本分类（SMTC）或社交媒体文本挖掘的新兴研究。与英语相比，越南人是低资源语言之一，仍然没有集中精力并彻底利用。受胶水成功的启发，我们介绍了社交媒体文本分类评估（SMTCE）基准，作为各种SMTC任务的数据集和模型的集合。借助拟议的基准，我们实施和分析了各种基于BERT的模型（Mbert，XLM-R和Distilmbert）和基于单语的BERT模型（Phobert，Vibert，Vibert，Velectra和Vibert4news）的有效性SMTCE基准。单语模型优于多语言模型，并实现所有文本分类任务的最新结果。它提供了基于基准的多语言和单语言模型的客观评估，该模型将使越南语言中有关贝尔特兰的未来研究有利。

Many prior language modeling efforts have shown that pre-training on an in-domain corpus can significantly improve performance on downstream domain-specific NLP tasks. However, the difficulties associated with collecting enough in-domain data might discourage researchers from approaching this pre-training task. In this paper, we conducted a series of experiments by pre-training Bidirectional Encoder Representations from Transformers (BERT) with different sizes of biomedical corpora. The results demonstrate that pre-training on a relatively small amount of in-domain data (4GB) with limited training steps, can lead to better performance on downstream domain-specific NLP tasks compared with fine-tuning models pre-trained on general corpora.

Due to their crucial role in all NLP, several benchmarks have been proposed to evaluate pretrained language models. In spite of these efforts, no public benchmark of diverse nature currently exists for evaluation of Arabic. This makes it challenging to measure progress for both Arabic and multilingual language models. This challenge is compounded by the fact that any benchmark targeting Arabic needs to take into account the fact that Arabic is not a single language but rather a collection of languages and varieties. In this work, we introduce ORCA, a publicly available benchmark for Arabic language understanding evaluation. ORCA is carefully constructed to cover diverse Arabic varieties and a wide range of challenging Arabic understanding tasks exploiting 60 different datasets across seven NLU task clusters. To measure current progress in Arabic NLU, we use ORCA to offer a comprehensive comparison between 18 multilingual and Arabic language models. We also provide a public leaderboard with a unified single-number evaluation metric (ORCA score) to facilitate future research.

Pre-trained transformers are now the de facto models in Natural Language Processing given their state-of-the-art results in many tasks and languages. However, most of the current models have been trained on languages for which large text resources are already available (such as English, French, Arabic, etc.). Therefore, there are still a number of low-resource languages that need more attention from the community. In this paper, we study the Algerian dialect which has several specificities that make the use of Arabic or multilingual models inappropriate. To address this issue, we collected more than one million Algerian tweets, and pre-trained the first Algerian language model: DziriBERT. When compared with existing models, DziriBERT achieves better results, especially when dealing with the Roman script. The obtained results show that pre-training a dedicated model on a small dataset (150 MB) can outperform existing models that have been trained on much more data (hundreds of GB). Finally, our model is publicly available to the community.

预先训练的上下文化文本表示模型学习自然语言的有效表示，以使IT机器可以理解。在注意机制的突破之后，已经提出了新一代预磨模的模型，以便自变压器引入以来实现了良好的性能。来自变压器（BERT）的双向编码器表示已成为语言理解的最先进的模型。尽管取得了成功，但大多数可用的型号已经在印度欧洲语言中培训，但是对代表性的语言和方言的类似研究仍然稀疏。在本文中，我们调查了培训基于单语言变换器的语言模型的可行性，以获得代表语言的特定重点是突尼斯方言。我们评估了我们的语言模型对情感分析任务，方言识别任务和阅读理解问答任务。我们表明使用嘈杂的Web爬网数据而不是结构化数据（维基百科，文章等）更方便这些非标准化语言。此外，结果表明，相对小的Web爬网数据集导致与使用较大数据集获得的那些表现相同的性能。最后，我们在所有三个下游任务中达到或改善了最先进的Tunbert模型。我们释放出Tunbert净化模型和用于微调的数据集。

在多语言甚至单语言中鉴定的模型的零拍跨语言能力刺激了许多假设，以解释这一有趣的经验结果。但是，由于预处理的成本，大多数研究都使用公共模型的公共模型，其预处理方法（例如代币化，语料库规模和计算预算的选择）可能会大不相同。当研究人员对自己的模型预识时，他们通常会在预算有限的情况下这样做，并且与SOTA模型相比，最终的模型的表现可能明显不足。这些实验差异导致有关这些模型跨语性能力的性质的各种不一致的结论。为了帮助对该主题进行进一步研究，我们发布了10个单语字节级模型，并在相同的配置下进行了严格审慎的概述，并具有大型计算预算（相当于V100的420天）和Corpora，比原始BERT大4倍。由于它们不含令牌，因此消除了看不见的令牌嵌入的问题，从而使研究人员可以在具有不同脚本的语言中尝试更广泛的跨语言实验。此外，我们释放了在不自然语言文本上预测的两个模型，这些模型可用于理智检查实验。关于质量检查和NLI任务的实验表明，我们的单语模型实现了多语言的竞争性能，因此可以加强我们对语言模型中跨语性可传递性的理解。

预处理的多语言上下文表示表现出了巨大的成功，但是由于其预处理数据的限制，其好处并不适用于所有语言品种。这给这些模型不熟悉的语言品种带来了挑战，这些模型的标签\ emph {和未标记的}数据太限制了无法有效训练单语模型。我们建议使用其他特定于语言的预审进和词汇增强，以使多语言模型适应低资源设置。使用依赖性解析四种不同的低资源语言品种作为案例研究，我们表明，这些方法显着改善了基准的性能，尤其是在最低的资源案例中，并证明了此类模型的数据和目标之间关系的重要性语言品种。

Recent work attributes progress in NLP to large language models (LMs) with increased model size and large quantities of pretraining data. Despite this, current state-of-the-art LMs for Hebrew are both under-parameterized and under-trained compared to LMs in other languages. Additionally, previous work on pretrained Hebrew LMs focused on encoder-only models. While the encoder-only architecture is beneficial for classification tasks, it does not cater well for sub-word prediction tasks, such as Named Entity Recognition, when considering the morphologically rich nature of Hebrew. In this paper we argue that sequence-to-sequence generative architectures are more suitable for LLMs in the case of morphologically rich languages (MRLs) such as Hebrew. We demonstrate that by casting tasks in the Hebrew NLP pipeline as text-to-text tasks, we can leverage powerful multilingual, pretrained sequence-to-sequence models as mT5, eliminating the need for a specialized, morpheme-based, separately fine-tuned decoder. Using this approach, our experiments show substantial improvements over previously published results on existing Hebrew NLP benchmarks. These results suggest that multilingual sequence-to-sequence models present a promising building block for NLP for MRLs.

特定于语言的预训练模型已被证明比单语说在单语法评估设置中更准确，阿拉伯语也不例外。但是，我们发现先前发布的阿拉伯伯特模型显着培训。在这本技术报告中，我们展示了Jaber，Junior Arabic Bert，我们的预用语言模型原型专用于阿拉伯语。我们进行实证研究，以系统地评估模型在各种现有阿拉伯语NLU任务中的性能。实验结果表明，Jaber实现了Alue的最先进的表演，这是阿拉伯语了解评估的新基准，以及成熟的内部基准